Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Jul 2020
Posts: 40
Just Getting Started
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OP
Just Getting Started
Joined: Jul 2020
Posts: 40 |
What causes the passenger electric window to hunt intermittently near the top even though there is no key in the ignition. Thanks in advance
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Joined: Feb 2016
Posts: 8,684 Likes: 413
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,684 Likes: 413 |
Just a guess Simon but if there is mechanical play in the winder mechanism the window could drop after reaching top of travel releasing stop switch, so it winds up again then repeats. As a security feature wouldn't power to windows need to be maintained?
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Mar 2009
Posts: 11,533 Likes: 318
Smile, it confuses them Member of the Inner Circle
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Smile, it confuses them Member of the Inner Circle
Joined: Mar 2009
Posts: 11,533 Likes: 318 |
If it is being moved by the electric motor and just jumping up/down a small amount then it is likely to be thinking someone is opening the door and dropping to avoid damaging the rubber seal.
Could be the sensor on the way out or a cable issue, I am not certain if this is driven by door open/light-on sensor or something linked to the door handles (in/out?) Have a fiddle with those and see what triggers it? Could be a loose cable around those.
Everyone loves a Morgan. Even me, unless it's broken again.
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Joined: Aug 2006
Posts: 2,093 Likes: 260
The TM in Talk Morgan Talk Morgan Expert
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The TM in Talk Morgan Talk Morgan Expert
Joined: Aug 2006
Posts: 2,093 Likes: 260 |
Good advice above.
For reference, the microswitch that controls the window entrance and egress are a weak point on the Aero. It isn’t uncommon for them to fail or become problematic in the way they operate. As Alistair mentioned, the drop is to protect against damaging the top window seal when opening the door and sealing it when closing the door. Iirc, I replaced mine three times in the space of eight years with one Aero based product and it wasn’t uncommon to have to close the drivers door and then reopen the passenger door, use the window up switch to raise the driver’s door window, to seal it. The problem was made worse when the passenger side wouldn’t close properly too.
Another point to note is that you can reset the window position and the procedure, as noted by MMC, is:
The reset is a very simple procedure, if you lower the window on the switch until it reaches the bottom and then raise the window right to the top, ensuring you keep the window switch held in the lift position for approx 5 seconds, the window will automatically reset
It you have let the main battery run flat, replaced it or used the battery isolation switch, it is often necessary to reset the window position.
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